A5055289523- Acoustic Wave Phenomena Research
- Metamaterials and Metasurfaces Applications
- Musculoskeletal pain and rehabilitation
- Ergonomics and Musculoskeletal Disorders
- Advanced Antenna and Metasurface Technologies
- Landslides and related hazards
- Turbomachinery Performance and Optimization
- Rock Mechanics and Modeling
- Rocket and propulsion systems research
- Heat Transfer Mechanisms
- Dam Engineering and Safety
- Computational Fluid Dynamics and Aerodynamics
- Ultrasonics and Acoustic Wave Propagation
- Cellular and Composite Structures
- Phytoplasmas and Hemiptera pathogens
- Occupational health in dentistry
- Aerodynamics and Acoustics in Jet Flows
- Radio Frequency Integrated Circuit Design
- Numerical methods in engineering
- Aluminum Alloys Composites Properties
- Music Technology and Sound Studies
- Cocoa and Sweet Potato Agronomy
- Composite Structure Analysis and Optimization
- Innovative Energy Harvesting Technologies
- Geotechnical Engineering and Analysis
Xi'an Jiaotong University
2020-2025
Nanchang University
2020-2024
Weifang Medical University
2012-2024
Northwestern Polytechnical University
2021-2024
China Academy of Launch Vehicle Technology
2023
Gannan Normal University
2022-2023
Open University of China
2023
Aviation Industry Corporation of China (China)
2022
Guilin University of Technology
2022
University of Hong Kong
2019-2022
Inspired by recent demonstrations of metasurfaces in achieving reduced versions electromagnetic cloaks, we propose and experimentally demonstrate source illusion devices to manipulate flexural waves using metasurfaces. The approach is particularly useful for elastic due the lack form invariance usual transformation methods. We compact simple-to-implement shifting, transforming, splitting a point source. effects are measured be broadband robust against change positions, with agreement from...
Soft robotic glove with brain computer interfaces (BCI) control has been used for post-stroke hand function rehabilitation. Motor imagery (MI) based BCI aided devices demonstrated as an effective neural rehabilitation tool to improve function. It is necessary a user of MI-BCI receive long time training, while the usually suffers unsuccessful and unsatisfying results in beginning. To propose another non-invasive paradigm rather than MI-BCI, steady-state visually evoked potentials (SSVEP) was...
Abstract Guiding classical waves has inspired a wealth of nontrivial physics and significant applications. To date, robust compact way to guide energy flux traveling along an arbitrary, prescheduled trajectory in uniform medium is still fundamental challenge. Here we propose experimentally realize generic framework ultrathin waveguides for omnidirectional wave trapping efficient routing. The metagrating-based waveguide can totally suppress all high-order parasitic diffractions route guided...
Purpose The paper aims to propose a virtual reality (VR) wisdom teaching model in open university English course from the perspective of “Metaverse”. study testify stimulation for learning and effectiveness English-expressing with VR tools adult learners practice pilot reform project. Design/methodology/approach opted an exploratory using ICARE Design Model as framework, under grounded theories constructivism multi-modal teaching. compared evaluation data one-semester performance between...
Abstract Objectives To describe the prevalence of self-reported musculoskeletal disorders among workers in electronics manufacturing industry and to investigate relations between work-related (WMSDs) variables. Methods An interview-based questionnaire survey was carried out thirty factories China 2018. The WMSDs estimated using modified Nordic Musculoskeletal Questionnaire (NMQ). A multivariate logistic regression model applied evaluate effects risk factors on multiple body parts. Results...
A striking phenomenon of collective cell motion is that they can exhibit a spontaneously emerging wave during epithelia expansions. However, the fundamental mechanism, governing emergence and its crucial characteristics (e.g., eigenfrequency pattern), remains an enigma. By introducing mechanochemical feedback loop, we develop highly efficient discrete vertex model to investigate spatiotemporal evolution spreading epithelia. We find both numerically analytically expanding monolayers display...
Bianisotropy is common in electromagnetics whenever a cross-coupling between electric and magnetic responses exists. However, the analogous concept for elastic waves solids, termed as Willis coupling, more challenging to observe. It requires coupling stress velocity or momentum strain fields, which difficult induce non-negligible levels, even when using metamaterial structures. Here, we report experimental realization of flexural waves. Based on cantilever bending resonance, demonstrate...
Transformation optics (TO) can be used to investigate nontrivial spacetime structures with inhomogeneous materials. However, the extreme curvature and large refractive indices make implementation of a wormhole challenging. By considering flexural waves on curved plate geometric curvature, stringent material requirement relaxed, we demonstrate two-dimensional analog using homogeneous materials within laboratory frame. TO is understand wave propagation in such space. This elastic space...
With the acceleration of industrialization and population aging, low back pain (LBP) has become leading cause life loss years caused by disability. Thus, it places a huge economic burden on society is global public health problem that needs urgent solution. This study aimed to conduct an epidemiological investigation research large sample workers in key industries different regions China, determine incidence distribution characteristics LBP, explore epidemic law, provide reference basis for...
Nonreciprocal transmission of waves is highly desirable for the transport and redistribution energy. However, building an asymmetric system to break time-reversal symmetry relatively difficult because it tends work under stringent guidelines, narrow bandwidth, or external impetus, particularly in a three-port system. Without breaking reciprocity, realizing "one-way" elastic by linear passive structure higher-dimensional system, such as circulator, poses quite challenge. Here, based on...
In this article, a novel meta-lattice sandwich structure is proposed and designed for impulsive wave attenuation dynamic load mitigation. This original truss core has similar configuration as normal lattice structure, except that its bars are composed of unit cells. The design philosophy locally resonant elastic metamaterials integrated into the cell whereby relatively heavier metal (the resonator) coated with soft material layer (rubber coat), which then connected to an outer shell. Based...
<sec> <b> <b>What is already known about this topic?</b> </b> In recent decades, work-related musculoskeletal disorders (WMSDs) have become increasingly prominent and an important issue that of universal concern urgent need to be solved in all countries the world. </sec><sec> added by report?</b> The top three industries or occupational groups with highest standardized prevalence rate WMSDs were flight attendants, medical staff, vegetable greenhouses order. Women workers 1.5 times more...